In the coming years, the LHC will be upgraded to provide much higher luminosity. This implies increased radiation damage, occupany and pile-up for the ATLAS experiment and requires the replacement of the current Inner Detector with an improved all-silicon tracker.
The seminar will outline the current ATLAS Inner Detector, the reasons for its replacement and current layout concepts. The status and achievements of the current "baseline" technologies (planar and 3D passive silicon sensors) will be presented before giving an overview of concepts for novel CMOS-based sensors. Results obtained with first CMOS prototypes and the current roadmap towards full-size prototype modules will be shown.
